Leonardo Costas (born 26 May 1966 in Argentina) is an Argentinean retired footballer who last worked as head coach of CD Costa do Sol in Mozambique.
Costas started his senior career with Racing Club de Avellaneda in the Argentine Primera División, where he made sixty-three appearances and scored two goals. After that, he played for Locarno, Club Atlético Banfield, Defensa y Justicia, Club Almagro, and CSyD Tristán Suárez.